Two-part dipper for excavating-machines.



W. S. MUKEE.

TWG-ART DIEPER. FOR E XGAVTIEG MACHINES. APLIGTGE FILED .TUNE 11, 1912.

1,077,486. 'Patented Nov;4, 1913.l

.fsf-rares' llierre;N ia onirica.

WALTER s. mman, or' eLnNoon, ILLINors, AssIGNo'n ronDGAR ALLEN AMERICAN nANGANEsn STEEL COMPANY, osnuecsm, MAINE, ncoeronnrioN or MAINE.;

TWO-PABT DIZEIPEIE,A EGE EXCAVATNG-LIACHINES.

-' To all whom it may concern:

.f.. Bel'it'lrnown'thatl, WALTER S. MoKrE, a citizen' of theiUnited States, and aresident of Glencoe, in the county oCook and State of Illinois, have mad-e and invented certain new and. useful Improvements in Two-v Part. DippersforExcavating-Machines, oi

which the following is a specification.

v `My-in'vention Arelates to dippers for erica vating, dredging, digging' and similar inachines, and. more particularly to dippers front vportion only of theidipperbody; to. provide -an improved form of' 'joint Athrough g ther a ono' comprising a body portion made up of vtwo parts eachformed' fromrast metal and each forming approximately 'one-balli` of the ldipperibod ,"the two parts being joined t0- g joints located in the Asides of said body portion.

which thetwo part'solthe 'dipperbody are j ciate'd therewith through which the lower' ends of alifting bail are 4secured 'to the dipl;u per body through the ears aforesaid; vand chines as are hereinafter more fully and at secured together; to providean improved arrangement @f ba'il .pins 'and parts asso to providesuchjfurther improvements and relating to dippers for excavating ma- .lengthv described and claimed. 'i

The drawing accompanying and forming part of this'application .illustrates "the preferred embodiment of my invention,

,althoughlit will be understood that thefsanie is capable of embodiment inother specific forms and that my invention includes such variations and modifications of theA particu lar form illustrated as' will be obvious to those skilled in the art towhieh my invention relates. l

Referring to the drawing: Figure' l .is a view showingha dipper'body inl perspective,

the'same being Inadein accordance with my lnventiongQFlg. 2 is'fa view somewhat enlarged showing a section upon a transverse plane indicated 'by -`the line "2 2, F 1g. .1 v;

'Figli is a View showing' a section upon a plane including'theline 3-8, Figi, looking toward the shoulder of the lifting ear as.

Yspe@nieguen-'iifzmaers raient.

`features, howevenfform no .vention 'to .whichythis application relates.

The two parts of the dipper body farefclornlv .monly secured togetherby `Imeansof fsuitf "able rivets 1,1, arranged along "the .joint bei Patented Nov. 4', 1913.

Application iii-ed June 1 144 1312. Serielle. 703,612.

indicated bythe'h'arrows; and, Fig. 4

view showingahail pin in'pers'pective.

Beren-lng to' the drawing, the reference characters 5, 6 designateportions of a two.

.part dipper body, the same being made frein cast metal and preferably from cast inanganese steel in order to. reduce to a minimum the mechanical processes necessary in forming the clipper andv provide" a body having the, excessive strength and wearing qualities of the 5 preferred material inentioned. .The 'rear ends of the front' portion overlap .the forward ends of the rear porf tion as shown, and the two parts are secured ltogether alongjoints located in thes'ides of. the finished bodywhereby' a .unitary twolpart body portion is procured. The-fiori' vWard portion 6 1s preferably formed-with.-

recesses in its inner surface as shown'inFigi 2, ahdtheputline oflwhich'is indicated by .the lines i", .Figa 1,. within which the" concespondingly shapedforward endsof the T8311?- portion 5\ 'of the body lie ;'-y whereby -a stronger joint, -and a dipper {body} havinga smocth'- interior surface, are n'ocured. v

-The' dipper body `will be provided with .suitable lugs 8 to which the means for directing 1 the 'movements ofV ,the idipper are connected,

:1 -suitable 9, land'.suitable teeth'w, which part of heintween the parts. The dipper body formed as ab'ov'eex'? one to eachside of the .bodv portion'through `90 plained is lited'when the flipper. is. in "us'e to thereby fill vit withthe materialb'eing operated vupon by meansV of 'av bail, 'not '.shown,'the lower ends of'whi'chvare secured' .915 .suitable 'bail pins, one .of whichv is shown'-A .at- 12, Fig. 4. The outer ends of 'these bail pins extendfth'i'ough bearings- 13 'formed .in the upper ends.`of' 'lifting ears 14, and the.V

inner ends .of `said pins are supported in 1020 bearin'gsl formed 'in the trontfp'ortion 6'01:- .the clipper body',. tlie rear portion o they body having openings '-16 registering-with, but larger than the bearings -151z rbo've" r e-.v

ferred'to. It will be understood "lfiutfgwhile' but a singlebiting?- ear .is` show'5'f'jo1ie gxvlldoe,v loe.. cated'upon each'si'dd of Adipper body.'

the b ai'l 1pin,sothat the inner end of the pinv `1 .diaper- 1 'preciated that the lugs 19 servey to relieve' when the dipper is inv use; and the vstresses strain remains unchanged throughout the and secured together aiongjoints'located in `the vvsides thereof' to therebyiorxn a two ijtofchanges. due to looseness or distortion of the A.joint between the front andy rear por- Adipper isborne by the front of the di'pper vthe body portion thereof when the clipper The bail pai" "12j isgeommonlyfpfovidedwtai an enlarged' head 1T which lies V"wit-.hin-v tlj openlng 16 andthe head and-openingen is large .enoughyin-i the!v preferrdi afl'r"ange't ment 0f 'the Parts @sleeve ,espace ,between its vwalls and the periphery oftheheadfo 12 is supportedVv entirely `by the bearingl, whloh, as above' mentioned, is-formed in the frontportlon' of the bodyportion of the,

The base portions-180i the" lifting'ears above referred to rest Aentirely upon the front portion .of the two-part clipper body, as shown in Fig. 1, each of which bases abuts against 'a' l111g 19 formed integrally'with 'the said front portion, the upper ends of the ears beinggoset to providespaees 'between the lugs and'ears within which the lower ends ofthe lifting bail lie when the parts are assembled; and the ears are'- secured in place upon the frontv portion of the dipper body by means of rivets 20 extending through the bases and through-the overlapping portions of the two parts of the body, whereby the rivets in addition .to securing the ears inplaee, assist inholding the parts ofefthe body together.

flzgn view ofthe premises it will be apthe rivets 20 from shearing strains and, the 'bases 18 and lugs 19 being upon one and the Vsame-part of thedipper body, their relation with one another .cannot change up'on the rivets 20 are therefore not subject tin developing when the dipper is in'nse as fis the case where the ears are secured to one part of the dipper body'and the lugs vformed upon the other. The hearings 15 -for the inner ends of the bail pins beingalso uppn the forward part of the body, it follovsf's that theentire strain due to lifting the body, and Vthat the distribution of such lbases of 4said earsabutfand `,vmeans'for `curing said several partstftogether;^

fppelrbody, there# was" of@ said Vfront portion'oye'rlappin the 'forward ends.

ifting ears located' .one .upon .'.eaehf sidejof thefnbodyiandathe "flasesof whieliears rest ientirelyupon the of. said Yrear portion two' front portion 'ofsa'id body, said ears having `ealeh 'ai'bearing to receive. one4 end of a {bail pin and 'the front portion of said body having bearings located in line withthe bearing in' said: ears; two lugs formed integrally with the front portion of.' the body and vagainst `which the-.bases of-.s'aid ears iahut;

andr means. vfor. securingsaid several' parts together. v Y i Y l 2'. Inavxiipper for excavatingand similar inachines.a dipper body v't('oniprising (front f and rear portions'formed 'from east metal andseeured together along joints` locatedin the sidesvthereof to therebygforln atWQFpa-rt dipper body,v vthe 'rea-rends of saidv` front portion overlapping the orvmrd` ends of n said rearportion;- two lifting earslocated i" one upon each-side of the body and the bases of Awhich `earsl rest entirely vuponv the" front f portion'of said body, 'said' ears having 'each- .a bearingto 'receive .onelfen'd y of-'aj bailjpin, the 'front' portion of seidfbody having ings located in .line .with thebearings" in than the bearingsin said?frontfportion'; two" tion "of vthe body and againstf whiohthe 3Q In adipper for,excavating'and'sirnil 1naehines, a clipper body'eo'mprising fritf and rear portions forrnedfrorncast niet'al" and secured together along joints locatedfi'n the sides thereof to thereby forInatwoI-palt lugs formed integrally with the front 4555- dipper body, the rear ends' of sidifront pori? tion overlapping the forwardends'io 'said `-'S upon each side of the body and -thebases 051-?"105 rear portion; two lifting'fears"loca-ted cinef which ears rest entirely upon-the?front` pore tion of said body; fasteni-nglmeansj for-ses' curing said ears in place 7and 'which asten'i .2i-Lf:

ing means 'entend throughi'the overlapping parts of the front andrear portionsifof said body; two lugs formed integrally with the-'front portion of the body'andagaiiist which the bases said ears abut;'. aiidsfasA .tening meansy arranged along thejointfbelA tween said front and rear portionsfforseenn ing them together. .l n f-i Signed'at 'Chica-go in the county of Gook and State of Illinois this :EourthfdaynotS 'June A.' D. 1919...A

WALTER-SLMCKEE., Y Witnesses i y M.1B MYERS,

'J'. H. HUGHES.

said earshand the rear portion of said body' Y .t having lopenings 1n line'lwith" and larger' 

